HTPB(Hydroxyl-Terminated Polybutadiene) CAS 69102-90-5 is a liquid remote claw polymer, the new liquid rubber. The properties vary because HTPB is a mixture rather than a pure compound, and it is manufactured to meet customers' specific requirements. A typical HTPB is R-45M with each end of the chain terminated with a hydroxyl [OH] group.
It and chain extension agent, crosslinking agent in room temperature or high temperature reaction can generate 3D network structure of curing content. The curing content has excellent mechanical properties, especially good resistance to hydrolysis, acid and alkali resistant, wear resistance, low temperature resistance and excellent electrical insulation.
and processing performance is good. HTPB can be used in :
- Adhesive
- Coating
- Rubber products
- Solid fuel
- Propellant
- Planes tires of structural materials
- Hydroxyl-terminated polybutadiene propellant(HTPB+AP+Al)
- Aerospace and rockets
- And so on many kinds of usage.
We can research and develop the different type HTPB according to the special specification of our clients.
ITEM
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GRADE I
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GRADE II
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GRADE III
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GRADE IV
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GRADE V
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GRADE VI
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Appearance
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achromatous or light yellow, no visible impurities
|
|||||
Hydroxyl value,(mmol/g)
|
0.47-0.53
|
0.54-0.64
|
0.65-0.70
|
0.71-0.80
|
0.81-1.00
|
1.00-1.40
|
Viscosity(40℃ Pa.s)≤
|
9.5
|
8.5
|
4.0
|
3.5
|
5.0
|
3.0
|
Peroxide mass fraction, %
|
0.04
|
0.04
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0.05
|
0.05
|
0.10
|
0.10
|
Moisture,wt% ≤
|
0.05
|
0.05
|
0.05
|
0.05
|
0.10
|
0.10
|
Volatile Content,% ≤
|
0.5
|
0.5
|
0.65
|
0.65
|
1.0
|
1.0
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Molecular weight
|
3800-4600
|
3300-4100
|
3000-3600
|
2700-3300
|
2300-3000
|
2400-1700
|
Post time: Feb-13-2022